Recent advances on the sustainable approaches for conversion and reutilization of food wastes to valuable bioproducts

Ng, Hui Suan; Kee, Phei Er; Yim, Hip Seng; Chen, Po-Ting; Wei, Yuhong; Lan, John Chi-Wei

doi:10.1016/j.biortech.2020.122889

Cited by 185 publications

(62 citation statements)

References 93 publications

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“…In addition, incineration cause a loss of energy due to the evaporation of water, as the humidity reaches up to 82-86% [4] and is often accompanied by a release of dioxins. As a result, loss of valuable compounds and nutrients contained in this food waste [15].…”

Section: Introductionmentioning

confidence: 99%

Food Waste reuse as a feed for organic chicken: A case study

Mechkirrou¹,

Arabi²,

Ouhssine³

et al. 2021

E3S Web Conf.

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Since the food system will inevitably produce food waste, it is recommended that it be captured and recycled for more efficient use rather than being disposed of as solid household waste. Therefore, it is advantageous to promote food waste as poultry feed. In order to study the feeding feasibility of a poultry Lab- Prepared Feed (LPF) based on kitchen food waste as well as their nutritional value, the tests were carried out near Taza city on an organic chicken farm, in Eastern Morocco. The results of consumption indices concerning organic chickens treated only by Lab-Prepared Feed showed average values of 1.18 and 1.17 for tests 1 and 2 successively. According to the results obtained, the tests proved the feeding feasibility of a Lab-Prepared Feed (LPF), it appears to be a good substitute for commercial foods. The study may help to ensure the recovering of food waste materials as a new poultry feed substitute.

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Section: Introductionmentioning

confidence: 99%

Food Waste reuse as a feed for organic chicken: A case study

Mechkirrou¹,

Arabi²,

Ouhssine³

et al. 2021

E3S Web Conf.

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“…Initiatives aimed at proposing alternative methods of manufacturing alcohol-based hand sanitizer, including the use of different sources of ethanol (Melo, 2020). Agricultural and food residues are appealing raw materials for the conversion into valuable bioproducts, such as biofuels (Ng et al, 2020). Sweet potato (Ipomoea batatas) appears as a prosperous substrate for bioethanol manufacturing, as it presents a high yield in starch per cultivated area (Lareo and Ferrari, 2019).…”

Section: Introductionmentioning

confidence: 99%

A circular economy model for ethanol and alcohol-based hand sanitizer from sweet potato waste in the context of COVID-19

Weber

Ranzan

Liesegang

et al. 2020

BJO&PM

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Goal: The goal of the present work is to analyze the techno-economic viability of a biorefinery to generate ethanol and alcohol-based hand sanitizer from sweet potato waste within the concept of a circular economy. Design / Methodology / Approach: A survey of expenses for a 1000 L.day-1 distilled plant was carried out, and five different market scenarios were evaluated, varying the rate of production of each product. Results: Results show that the higher the production of the hand sanitizer, the more lucrative the scenarios are. The economic breakeven point occurs when the percentage of the alcohol-based hand sanitizer production is equal to 34%. However, the project becomes economically attractive from the production rate of 39%. The scenario for 80% of alcohol-based hand sanitizer production resulted in NPV of US$ 913,140.92, IRR of 64%, with a discounted payback of 0.72 year. Limitations of the investigation: It was considered that all the production was sold, which is in line with the current market demand. However, if the market slows down, the sales and the revenue obtained may be lower. Practical implications: The production of hand sanitizer from sweet potato waste is an opportunity to meet the market needs in scenarios such as the COVID-19 pandemic. Besides, the proposed biorefinery promotes the development of the circular economy through waste minimization. Originality / Value: No studies about the production of ethanol and alcohol-based hand sanitizer from sweet potato waste in an integrated way and the simulation of different real market scenarios were found.

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“…However, these products (citrus peels) are used in several industries as polymethoxylated flavonoids that are applied as phytochemical, pharmaceuticals, food products (Kim et al, 2004) . Conversion of these wastes to valuable product is considered as an alternate and common practices for recycling of byproduct and environmental management systems (Ng et al, 2020). (Hamai et.…”

Section: Introductionmentioning

confidence: 99%

Ultrasound Assisted Extraction and Response Surface Methodology and Artificial Neural Network Optimization of Pectin From Orange Peel

Hundie¹

2020

Preprint

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The objective of study was ultrasound-assisted extraction of pectin from orange peel using response surface method and artificial neural network technique. The following findings are absorbed from the effects of extraction parameters and technique used. The pH solution was highly significant compared to ultrasound power. As well as interaction between ultrasound and pH were found to be strongly influenced the extraction yield of pectin. The optimal parameters for extraction were irradiation time of 22.5min, pH of 1.5, and ultrasound power of 155W and liquid-solid ratio 22.5:1 mL/ g. Under these conditions, yield of pectin was 26.87% experimentally, while 26.74 and 26.93% of yield were predicted by response surface and artificial neural network model respectively.The extracted pectin was categorized as high methoxyl pectin, since it has 63.13% degree of esterification, which is above 50% affirmed by Fourier transform infrared spectroscopy detection. Both response surface methodology and artificial neural network model prediction was in good agreement with experimental data; however, the prediction of artificial neural network prediction was better than artificial neural network. Therefore, artificial neural network model is much more accurate in estimating the values of pectin yield and mean square error when compared with the response surface methodology.

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Recent advances on the sustainable approaches for conversion and reutilization of food wastes to valuable bioproducts

Cited by 185 publications

References 93 publications

Food Waste reuse as a feed for organic chicken: A case study

Food Waste reuse as a feed for organic chicken: A case study

A circular economy model for ethanol and alcohol-based hand sanitizer from sweet potato waste in the context of COVID-19

Ultrasound Assisted Extraction and Response Surface Methodology and Artificial Neural Network Optimization of Pectin From Orange Peel

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